## Summary
This PR improves the fix for `PYI055` to be able to handle nested and
mixed type unions.
It also marks the fix as unsafe when comments are present.
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## Test Plan
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## Summary
Fix dropped union expressions for piped non-types in `PYI055` autofix
If you had `type[int] | type[str] | str`, it would have dropped the
`str`, which breaks the type!
Closes#9156
## Test Plan
`cargo test`
